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Discussion Starter #1
2002 Taurus.

I am looking at Motorcraft SP-432 Spark Plug

Are the spark plugs the same for Vulcan and Duratec?

Excluding Flex Fuel.

Excluding all other brands of spark plugs for now.
Just Motorcraft.
 

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No, they are not the same.

BTW, Motorcraft doesn't make any sparkplugs. They just order them from Autolite with a logo on them.
 

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No, they are not the same.

BTW, Motorcraft doesn't make any sparkplugs. They just order them from Autolite with a logo on them.

Nope. NGK is the OEM for Motorcraft. Autolite couldn't even qualify to get MC badging now.
 

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BTW, Motorcraft doesn't make any sparkplugs. They just order them from Autolite with a logo on them.
That used to be true but is no longer the case. Motorcraft plugs are no longer made by Autolite, they are now manufactured by NGK to Ford's specifications. I used to swear by Autolite but their quality has gone down hill badly in the last couple of years, I would not recommend them.
 

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Discussion Starter #6
I got this.
From various web sites.
Both U engine and S engine.
Motorcraft SP432

This Product Fits the Following: Notes: Spark Plug -- Plug Material: Finewire Double Platinum; Gap: .044; Type - Standard Service Plg Vehicle Engine • (96) 1996 Ford Taurus 3.4L V8 VIN: N SHO • (96) 1996 Ford Taurus 3.0L V6 VIN: U 12Valve • (97) 1997 Ford Taurus 3.0L V6 VIN: U 12Valve • (97) 1997 Ford Taurus 3.4L V8 VIN: N SHO • (98) 1998 Ford Taurus 3.0L V6 VIN: U OHV GAS • (98) 1998 Ford Taurus 3.4L V8 VIN: N SHO • (99) 1999 Ford Taurus 3.4L V8 VIN: N SHO • (99) 1999 Ford Taurus 3.0L V6 VIN: U OHV GAS • (00) 2000 Ford Taurus 3.0L V6 VIN: U OHV GAS • (01) 2001 Ford Taurus 3.0L V6 VIN: U 12Valve • (02) 2002 Ford Taurus 3.0L V6 VIN: U 12Valve • (03) 2003 Ford Taurus 3.0L V6 VIN: U 12Valve • (04) 2004 Ford Taurus 3.0L V6 VIN: U 12Valve • (05) 2005 Ford Taurus 3.0L V6 VIN: U 12Valve • (06) 2006 Ford Taurus 3.0L V6 VIN: U GAS • (07) 2007 Ford Taurus 3.0L V6 VIN: U

This Product Fits the Following: Notes: Spark Plug -- Plug Material: Finewire Double Platinum; Gap: .054; Type - Standard Service Plg Vehicle Engine • (96) 1996 Ford Taurus 3.0L V6 VIN: S 24Valve • (97) 1997 Ford Taurus 3.0L V6 VIN: S 24Valve • (01) 2001 Ford Taurus 3.0L V6 VIN: S 24Valve • (02) 2002 Ford Taurus 3.0L V6 VIN: S 24Valve • (03) 2003 Ford Taurus 3.0L V6 VIN: S 24Valve
 

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I got this.
From various web sites.
Both U engine and S engine.
Motorcraft SP432
If you are so dead on buying Motorcraft, why are you looking on 'various websites'? Go to dealer. Either brick-and-mortar store or directly on Motorcraft official website:
http://www.fordparts.com/landing/motorcraft.aspx
Plug in your VIN and start searching for 'spark plug'.
I shows that OE was AWSF-32F, I think it was single platinum. But now they have as 'Alternative Double Platinum Plug' the AGSF-32F-M (SP-432) for the 24 valve engine.
For the 2V engines is listed AWSF-32P-P. Alternatively SP-432 is listed, but is not what was OE.
However, is not the best choice for you aged ignition system. Soon, with those plugs, you will have to replace the wires and coils.

Nope. NGK is the OEM for Motorcraft. Autolite couldn't even qualify to get MC badging now.
I stand corrected :) Autolite was at that time the OE supplier. XP104 was their best replacement.
However, in my Fords and Hyundai now I have NKG Laser Iridium. ITR5F13 (6044) for Duratec V6 and Explorer V8.
Those are the best for Ford DIS ignition, better than what Ford had ever as OE... Because they are maintaining the exact gap longer, and the finer tip (lowering the spark voltage), they help protecting the aging ignition coils and wires. Using fine tip plugs I never had to replace the original wires or coils, on any of my cars.

Actually I see now that even Ford switched to fine tip platinum in newer cars, I was wondering if will they start recommending retroactively the newer plugs - like they did with Mercon V and with 5W20 oil.
 

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If you are so dead on buying Motorcraft, why are you looking on 'various websites'? Go to dealer. Either brick-and-mortar store or directly on Motorcraft official website:
Buy Motorcraft Parts Online | Official Motorcraft Auto Parts Site | FordParts.com
Plug in your VIN and start searching for 'spark plug'.
I shows that OE was AWSF-32F, I think it was single platinum. But now they have as 'Alternative Double Platinum Plug' the AGSF-32F-M (SP-432) for the 24 valve engine.
For the 2V engines is listed AWSF-32P-P. Alternatively SP-432 is listed, but is not what was OE.


I stand corrected :) Autolite was at that time the OE supplier. XP104 was their best replacement.
However, in my Fords and Hyundai now I have NKG Laser Iridium. ITR5F13 (6044) for Duratec V6 and Explorer V8.
Those are the best for Ford DIS ignition, better than what Ford had ever as OE... Because they are maintaining the exact gap longer, and the finer tip (lowering the spark voltage), they help protecting the aging spark coils and wires.

Actually I see now that even Ford switched to fine tip platinum in newer cars, I was wondering if will they start recommending retroactively the newer plugs - like they did with Mercon V and with 5W20 oil.
Example per pic, this plug, the top metal is mis-formed and does not fit the OEM wire. It is loose as a goose, and matches the carbon tracking, ruining the wire and the plug. I also have a pic of 3 different kinds of Autolite plugs with the same # on them, all out of the same package. One of them could not be gapped.

I feel like Ford controls the quality of Motorcraft. Once upon a time Ford used premium plugs on the rear bank = reverse polarity but later just made all them premium. This only for coil pack cars. COP does not need that.
Coilpack design pushes the limits of plugs on the rears. Fine wire, double plats make 100K OK.

There is a history of brand names being bought out by other businesses, then they run the quality down, milk the $$ and sell the remains. Fram for example.


-chart-
 

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Fram and Autolite are owned by the same guys. Same with Prestone, Garret turbos, Bendix brake pads - that's Honeywell International.

PS: At some point (1961) Ford bought the Autolite trade name, but feds filed an anti-trust suit and Ford had to give it up (1973).
 

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Fram and Autolite are owned by the same guys. Same with Prestone, Garret turbos, Bendix brake pads - that's Honeywell International.

PS: At some point (1961) Ford bought the Autolite trade name, but feds filed an anti-trust suit and Ford had to give it up (1973).

Again, nope. Honeywell sold them off in 2011. They're owned by an investment firm now, who shifted production to Mexico and let quality go to the dogs.
 

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Discussion Starter #12
If you are so dead on buying Motorcraft, why are you looking on 'various websites'? Go to dealer. Either brick-and-mortar store or directly on Motorcraft official website:
I did go to the Ford web site.

And I found
SP-413
and
SP-432

LINK


I'm just attempting to find out what spark plug came with the "U" engine in 2002.

And I found this link from TCCA

LINK
 

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I did go to the Ford web site.

And I found
SP-413
and
SP-432

LINK


I'm just attempting to find out what spark plug came with the "U" engine in 2002.

And I found this link from TCCA

LINK
413 is nickel, = cheap
432 is double platinum fine wire = premium

About ~$0.90 per plug.

Whatever you want to spend. ;)

-chart-
 

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SP-432 is not dual platinum, just fire wire platinum... It's perfect for Coil On Plug, but for DIS will have ground erosion, like I showed in the other thread. So, DOHC or not... less important. It mostly depends of ignition system type (manufacture year).


 

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I happened to find that on my single coil pack, 2002 Duratec DOHC engine, I should be using a double platinum plug, (where both the center electrode and the ground strap, both have a platinum surface), this is because of the way that the coil is set up. I worked for the city and found that there was a TCB from Ford on this for the Crown Vic police cars that I was working on. The set up for my model year Taurus is the same, but with two less cylinders, obviously. Some of the plugs,(actually half), fire from the ground strap to the center electrode, (opposite of the way that a conventional plug fires).

I couldn't get a double platinum plug with Motorcraft branding at the time, for some odd reason. I understand that they are now being offered. I settled with Autolite double platinums, but there's other brands, too. The reason for the requirement is electrode erosion on the negative or ground strap if it's not platinum. You'll end up with plug failure at a more frequent rate. Sure enough, it happened to me. I started getting misfire codes after about 30K miles with the single electrode plugs that were installed by the factory. I bought my Taurus new, BTW.

I installed double plats. and haven't had a problem since. I try to replace them at the required service interval, but it's is a job getting to those plugs with the Duratec engine. This plug requirement won't be an issue with the coil on plug set-up on some of the newer cars, just the older Taurus' with the separate single coil pack. The Vulcan engine cars with the single coil has the same issue. BTW, I also suffered coil failure with the single platinum plugs.

I see that there has been previous replies with this confirming info. I didn't realize that the issue had already been addressed.
 

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one thing i have learned is never assume new plugs are gaped correctly. always check them.
If new plugs are not gapped correctly, take them back. Re-gapping platinum plugs is risky and you may not know you damaged or lost the tiny platinum chip. Gap is not critical. GM uses 3 gaps on common engines, .040, .050,.060Thou. Not like +/- thousandth.


If plug gap within reason matters, then you have other weakness in the engine.


-chart-
 
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